We stayed in the Cruising Room at Jah's place. This room is at the very top of the building (3 flights of stairs I think). You need to be mindful of this if you intend to bring family along. Jah was unfortunately not there, but sometimes her brother was, and there were other people taking his place interchangeably.
The place is value for money, and I would still choose it over the hotel we were supposed to stay. The location is also very convenient, you have to walk about 200m to the nearest Bts station. Plus, there are plenty of food stalls nearby. Although my sister was vegan, she still managed to find fruit (watermelon, pineapple, guava) in those stalls. There's also a nearby cafe called the Sentimental Cafe where we dined in (they had vegetarian dishes too).
That said, although the house is very new and clean, the surrounding neighbourhood is not. If you journey to the back of the alley there are even shanties which reminded me of the poorer sides of Colombo, so be prepared especially if you're coming with family.
The bathroom was very clean, however the water pressure in the Cruising Room shower is quite slow, even after fixing it, it was still slow. This might make it difficult to shower, especially if you have long hair.
Also when it came to breakfast, they had cereal. However, on the first day there was no milk to eat the cereal with (luckily my mother had brought some biscuits to munch on). However the following days they made sure to keep milk packets there.
That said, our trip to BKK was quite exciting, just make sure you take a portable wifi with you! So you can use the Grab app whenever you want, otherwise you'll have to haggle prices with the local taxi drivers.